Neal Preston/Corbis -- Thirty years ago, Queen frontman Freddie Mercury and the self-proclaimed King of Pop, Michael Jackson, joined forces in the studio to record three duets. Those shelved demos will finally get a commercial release in the fall, according toThe Times of London. Mercury joined Jackson at his Los Angeles home studio in 1983 to record the songs "State of Shock," "Victory" and "There Must Be More to Life than This."

Scheduling difficulties prevented them from collaborating further. Jackson eventually recorded a version of "State of Shock" with Rolling Stones frontman Mick Jagger for the 1984 Jacksons album, Victory. Queen guitarist Brian May describes the Mercury-Jackson recordings as "exciting, challenging and emotionally taxing," as well as "cool."